You had until Jan 31st 2016 to opt in to keep your 30GB. If you didn't do that it will reduce, but no firm date that I know. May have already happened. OneDrive is still one of the cheapest and best supported cross-platform cloud drive storage, so if you use it, it's worth paying a little to keep using it. But there are options, so explore and find what suits you best.

You had until Jan 31st 2016 to opt in to keep your 30GB. If you didn't do that it will reduce, but no firm date that I know. May have already happened. OneDrive is still one of the cheapest and best supported cross-platform cloud drive storage, so if you use it, it's worth paying a little to keep using it. But there are options, so explore and find what suits you best.

I got the email today announcing my storage reduction from 15GB to 5GB. Meh, what are you gonna do? Promotions come and they end. Hard to argue with Microsoft changing something they gave you for free.